/*
 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package com.sun.imageio.plugins.bmp;

import java.awt.image.DataBuffer;
import java.awt.image.SampleModel;
import java.awt.image.SinglePixelPackedSampleModel;

import javax.imageio.spi.ImageWriterSpi;
import javax.imageio.spi.ServiceRegistry;
import javax.imageio.spi.IIORegistry;
import javax.imageio.stream.ImageOutputStream;
import javax.imageio.ImageWriter;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.IIOException;
import java.util.Locale;

import javax.imageio.plugins.bmp.BMPImageWriteParam;

public class BMPImageWriterSpi extends ImageWriterSpi {
    private static String[] readerSpiNames = { "com.sun.imageio.plugins.bmp.BMPImageReaderSpi" };
    private static String[] formatNames = { "bmp", "BMP" };
    private static String[] entensions = { "bmp" };
    private static String[] mimeType = { "image/bmp" };

    private boolean registered = false;

    public BMPImageWriterSpi() {
        super("Oracle Corporation", "1.0", formatNames, entensions, mimeType, "com.sun.imageio.plugins.bmp.BMPImageWriter", new Class[] { ImageOutputStream.class }, readerSpiNames, false, null, null, null, null, true, BMPMetadata.nativeMetadataFormatName, "com.sun.imageio.plugins.bmp.BMPMetadataFormat", null, null);
    }

    public String getDescription(Locale locale) {
        return "Standard BMP Image Writer";
    }

    public void onRegistration(ServiceRegistry registry, Class<?> category) {
        if (registered) {
            return;
        }

        registered = true;
    }

    public boolean canEncodeImage(ImageTypeSpecifier type) {
        int dataType = type.getSampleModel().getDataType();
        if (dataType < DataBuffer.TYPE_BYTE || dataType > DataBuffer.TYPE_INT)
            return false;

        SampleModel sm = type.getSampleModel();
        int numBands = sm.getNumBands();
        if (!(numBands == 1 || numBands == 3))
            return false;

        if (numBands == 1 && dataType != DataBuffer.TYPE_BYTE)
            return false;

        if (dataType > DataBuffer.TYPE_BYTE && !(sm instanceof SinglePixelPackedSampleModel))
            return false;

        return true;
    }

    public ImageWriter createWriterInstance(Object extension) throws IIOException {
        return new BMPImageWriter(this);
    }
}
